From time to time I search the web and I came across a tribute in his name

by Eva Laser

"Dear all, 

Below is a link to a tribute to Yochanan Rywerant, born in Czernowitz 
in the 1920's, deported to Transnistria with his mother Shulamit 
Wurmbrand in 1941, survived in Mogilev working at Jagendorf's Foundry, 
studied, worked and taught with Dr. Moshe Feldenkrais for many decades 
in Israel, taught the Feldenkrais method throughout the world, and 
wrote a number of books about it.

An exploration of the Hebrew culture;
its tradition of teaching & learning and its influence on the Feldenkrais Method.

by Eva Laser

In "The Feldenkrais Method, teaching by handling". Dr Feldenkrais does not write a lengthy foreword which apparently was opposed to his deeper understanding of humility, learning and knowledge; he plainly writes exactly how he explained it in a lecture for director Peter Brook and Teatro Campesino in the early summer of 1973.

With Honor to Yochanan Rywerant

by Moti Nativ

"Yochanan Ryverant began learning from Dr. Feldenkrais about the Method in 1952; I was then two years old. Many people learned from and followed Yochanan for decades. I was lucky to have the opportunity to become Yochanan’s student and friend, during the last two years of his life.